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SEAHAWK-1

In orbit NORAD 43820 KNTJ-0032-5210-8089-2604 United States of America

Observations 5
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2018

Falcon 9 Block 5 | Spaceflight SSO-A

Falcon 9 Block 5

Carrier rocket

Space Launch Complex 4E

Spaceport

5

Observations all time

Mission information
Spacecraft name
SEAHAWK-1
Status
Active
The satellite is in orbit
The network has not received data from this satellite for a long time
Launch and timeline
Launch
Falcon 9 Block 5 | Spaceflight SSO-A
Carrier rocket
Falcon 9 Block 5
Spaceport
Space Launch Complex 4E
Launch time
2018-12-03 00:00:00
Separation time
Satellite appearance
Data for the last 30 days
Orbital parameters of the satellite
Perigee
485.25 km
Apogee
493.89 km
Inclination
97.4°
Period
94.5 min
Semi-major axis
6867.7 km
Velocity
7.61 km/s
Orbital elements
TLE source
Celestrak
TLE updated
2026-10-10 20:56:55 UTC
Two-line elements (TLE)
1 43820U 18099BQ  26283.39456399  .00007383  00000-0  30384-3 0  9995
2 43820  97.3827 334.1722 0006328 260.6907  99.3615 15.24407236430077
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Orbit history, past year

Mean elements of every TLE set over the past 365 days, plotted against the epoch of the set. Each source is its own line; click it in the legend to hide it. A jump in altitude is a manoeuvre or a bad set; lines drifting apart are a disagreement between sources. “TLE age” is how many hours have passed since the epoch of the source's freshest set, plotted against when the set reached us, on a logarithmic scale. A set the source repeats unchanged does not reset the age.

Prediction divergence

Each TLE set is propagated with SGP4 to the epoch of the next set from the same source and compared with it, plotted against the epoch of the next set; the tooltip shows how many hours ahead the prediction ran. The logarithmic scale shows the size of the divergence and the tooltip its sign: plus along-track means the prediction is ahead of the satellite. This is how well the sets agree, not the true error: the reference is a TLE too, off by about a kilometre. An outlier is a manoeuvre between sets. Sets more than a week apart are not compared.

Time of closest approach, UTC Object 1 Object 2 Distance, km Speed, km/s Max. probability
2026-10-11 06:55:39 SEAHAWK-1
NORAD 43820 		BANDWAGON-4 OBJECT D
NORAD 66296 		3.737 12.88 1.9e-07
2026-10-11 09:17:26 SEAHAWK-1
NORAD 43820 		BANDWAGON-4 OBJECT D
NORAD 66296 		0.843 12.92 3.7e-06
2026-10-11 11:08:23 SEAHAWK-1
NORAD 43820 		AVUM R/B
NORAD 40698 		3.460 13.50 2.0e-07
2026-10-11 17:21:51 SEAHAWK-1
NORAD 43820 		OBJECT AJ
NORAD 67280 		4.588 2.91 2.1e-07
2026-10-11 23:56:52 SEAHAWK-1
NORAD 43820 		MALLIGYONG-1
NORAD 58400 		2.288 15.08 3.0e-07
2026-10-12 01:31:26 SEAHAWK-1
NORAD 43820 		MALLIGYONG-1
NORAD 58400 		3.805 15.08 1.1e-07
2026-10-12 12:26:28 SEAHAWK-1
NORAD 43820 		HERMES-1
NORAD 63242 		2.177 14.91 3.6e-07
2026-10-12 14:23:53 SEAHAWK-1
NORAD 43820 		YAOGAN-35 01C
NORAD 49393 		2.579 11.36 4.7e-07
2026-10-13 02:55:00 SEAHAWK-1
NORAD 43820 		YAOGAN-39 02A
NORAD 57886 		4.841 13.77 9.9e-08
2026-10-13 03:42:15 SEAHAWK-1
NORAD 43820 		YAOGAN-39 02A
NORAD 57886 		4.679 13.77 1.1e-07
2026-10-13 08:08:12 SEAHAWK-1
NORAD 43820 		STARLINK-3546
NORAD 51718 		4.118 10.03 6.2e-06
2026-10-13 10:21:32 SEAHAWK-1
NORAD 43820 		FENGYUN 1C DEB
NORAD 30926 		3.767 8.59 2.6e-07
2026-10-13 21:19:51 SEAHAWK-1
NORAD 43820 		OBJECT D
NORAD 67749 		2.545 9.42 5.5e-07
2026-10-14 00:38:14 SEAHAWK-1
NORAD 43820 		JACKAL-004
NORAD 69012 		3.386 14.73 1.6e-07
2026-10-14 01:38:46 SEAHAWK-1
NORAD 43820 		STARLINK-3711
NORAD 52131 		4.315 14.72 3.0e-06
2026-10-14 06:47:20 SEAHAWK-1
NORAD 43820 		TPA-1
NORAD 64533 		2.241 7.94 7.7e-07
2026-10-14 09:25:37 SEAHAWK-1
NORAD 43820 		GLOBAL-36
NORAD 100682 		3.332 13.00 2.4e-07
2026-10-14 14:39:55 SEAHAWK-1
NORAD 43820 		HYPERFIELD-1B
NORAD 64552 		1.025 8.00 3.6e-06
2026-10-15 00:55:07 SEAHAWK-1
NORAD 43820 		FLOCK 4H-11
NORAD 66714 		0.790 2.87 7.0e-06
2026-10-15 04:58:05 SEAHAWK-1
NORAD 43820 		KANOPUS-V 5
NORAD 43876 		3.101 14.51 2.0e-07
2026-10-15 11:53:42 NANOACE
NORAD 42844 		SEAHAWK-1
NORAD 43820 		4.739 13.19 1.1e-07
2026-10-15 23:45:39 SEAHAWK-1
NORAD 43820 		CONNECTA IOT-1
NORAD 60472 		4.676 3.08 2.0e-07
2026-10-16 02:07:24 SEAHAWK-1
NORAD 43820 		CONNECTA IOT-1
NORAD 60472 		3.753 3.08 3.1e-07
2026-10-16 03:41:55 SEAHAWK-1
NORAD 43820 		CONNECTA IOT-1
NORAD 60472 		4.993 3.08 1.7e-07
2026-10-16 10:47:16 SEAHAWK-1
NORAD 43820 		GENA-OT
NORAD 66774 		4.434 2.82 2.2e-07
2026-10-16 15:39:05 SEAHAWK-1
NORAD 43820 		BRO-21
NORAD 69007 		4.459 14.75 9.1e-08

Data: CelesTrak SOCRATES Plus, computed from TLEs of the public catalog. This is an estimate, not grounds for a manoeuvre: TLEs carry no covariance, and the maximum probability assumes a position error.

All conjunctions of this satellite